Ballpoint pen



FIG. 1 is a perspective view of a ballpoint pen, showing my new design;

FIG. 2 is a front elevational view of the invention;

FIG. 3 is a rear elevational view of the invention;

FIG. 4 is a left-side elevational view of the invention;

FIG. 5 is a right-side elevational view of the invention;

FIG. 6 is a top plan view of the invention; and

FIG. 7 is a bottom plan view of the invention.

FIG. 8 is a perspective cross-sectional view of the invention, taken across lines 8—8 of FIG. 4,

FIG. 9 is a detail perspective view of the invention, shown in FIG. 10; and,

FIG. 10 is an alternate perspective view of the invention.

The broken lines showing internal parts in FIG. 8 are included for the purpose of illustrating environment and form no part of the claimed design. 

The ornamental design for a ballpoint pen, as shown and described. 